In 1905 Richard Squire was manager of the West Berry Consols at Allendale, and developed an improved system of mine ventilation, which was supported in "The Age."[4] He was successful in combating and remedying the gas and ventilation troubles of the Deep Mines of Creswick and Allendale Districts after all had failed.Hand written report on Cause of Gas or foul air innundating mines during periods of low atmospheric pressure.Royal commission stamp to right hand corner dated 22 Jun 1903richard squire, report, cause of gas or foul air innundating mines during periods of low atmospheric pressure, royal commission, ventilation and sanitation of mines

Black weight belt with two stone weights with stainless steel Survivair U.S. Divers/U/Permissable supplied-air respirator/type C/pressure demand class United States Department of Labor/ MSHA U.S Department of Health Education NIOBH/ Mind Safety and Health Administration National Institute of Occupational Health and Safety Approval No. TC-19C-68/ Issued to Survivairs division. U.S. ... co Santa Anna./ MSHA NISOH approval issued 10/ Survivair's division U.S. Divers co./ February 1974

The auto tow launching mechanism was designed by Ray Jamieson of Cobram in the north of Victoria. The prototype was built the for the Corowa Gliding Club where it was used for some years. After Ray’s brother, Bert Jamieson, had witnessed the machine in use at Corowa, at Bert’s request, Ray built second one (the Museum’s exhibit) for use at Bacchus Marsh airfield. Bert lived in Melbourne at the time and was a member of the Victorian Motorless Flight Group (VMFG) which used Bacchus Marsh airfield. This occurred in the 1970s. The method of operation was to have the auto tow mechanism mounted in the back of a utility motor vehicle. The launching cable was attached to the glider. With the Volkswagen engine of the mechanism running, the tow vehicle would then drive along the runway to commence the launch. The mechanism would automatically apply brake pressure to the cable drum as the vehicle proceeded freely letting out the cable and then smoothly towing the glider into the air. When the launching cable reached a certain angle, the pilot would release the cable from the glider at which point the winching mechanism would automatically retrieve the cable in preparation for the next launch. This allowed quicker restarts and the flexibility of easily changing runways to suit the wind conditions. It made gliding a simple and cost-effective operation. Ray Jamieson and his son often used the prototype which they named “George” at Corowa in this way. With the exception of several demonstration launches, the Museum’s example of this type of device was not used by the VMFG at Bacchus Marsh due to rulings by the Department of Civil Aviation encouraging the use of aero tow launching at their site. As far as is known this is the only device of its type in the world and is indicative of the ingenuity found amongst the Australian gliding fraternity.Single drum and motorized drive mechanism mounted on a mobile steel frame.australian gliding, glider, sailplane, auto towing, launching, jamieson, corowa gliding club, victorian motorless flight group, vmfg

White 20cm round plastic disc with information on Weight plus Torque PSI plus Hover Gross Weight and Pressure Altitude for a UH - IH Huey Helicopter for use of The Royal Australian Air Force.UH-IH Performance Computer + Cruise data guide.computer and cruise data guide, uh-1h helicopter, raaf

General Electric turbocharger model B-22 was fitted externally to a Pratt & Whitney R1930 14 cylinder twin wasp radial air-cooled engine for the supply of air at an increased pressure to the carburetor intake. This enabled the B-24 Liberator to maintain a maximum 1300HP at takeoff from sea level to 30,000 ft. ceiling and at high altitude.Round metal supercharger with inlet and outlet.General Electric turbo super charger. GE Ser. No. 872144 FW, A Setting 6, Assembly OD WW 8456556, Model 75-B22-A6 AF Contract or Purchase Order W33-038AC-1699, Spec. H-285022-22 Schenectady Made in US

Published by Bendix Aviation Ltd in November 1943 during the Second World War. This seems to have been utilized by the Commonwealth Aircraft Corporation.world war two, airplane parts, american aircraft, tail wheels, bendix